Definition of "whatna"

Whatna noise was that ye were makin'?

1878, Saxon, Galloway Gossip Sixty Years Ago, section 183

O Jean, whatna time wi' thy sloth thou are wasting.

1897, Allan, Poems, 13

'I kenna whatna man ye are,' he says, 'but ye have the skill of lassies' hearts. Tell me truly, is there no way to win her to common love?'

1902, John Buchan, The Outgoing of the Tide